TSB N252523390 — Chevrolet and GMC Service campaign
N252523390 is a service campaign on file with NHTSA for 2 Chevrolet and GMC models, 2026 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Certain vehicles may have a condition in which the Intermediate Steering Shaft Lower Bolt is below torque specification. Dealers will inspect and if necessary, correct the front brake line torque to specification.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. N252523390 is filed as a service campaign, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years N252523390 names
| Vehicle | Model years |
|---|---|
| Chevrolet Silverado 1500 | 2026 |
| GMC Sierra 1500 | 2026 |
Every document filed under N252523390
| Document ID | Filed | Type |
|---|---|---|
| N252523390 | October 9, 2025 | Service campaign |
What N252523390 covers
Steering — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB N252523390?
N252523390 is a service campaign filed with NHTSA by Chevrolet and GMC, covering 2 Chevrolet and GMC models across the 2026 model years. NHTSA's summary reads: Certain vehicles may have a condition in which the Intermediate Steering Shaft Lower Bolt is below torque specification. Dealers will inspect and if necessary, correct the front brake line torque to specification.
Which vehicles does N252523390 cover?
NHTSA's file names Chevrolet Silverado 1500 (2026); GMC Sierra 1500 (2026). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB N252523390 a recall, and is the repair free?
N252523390 is filed as a service campaign, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of N252523390?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under N252523390, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under N252523390. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.